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Department of Energy and
Process Engineering
Spring 2017
Numerical Investigation
of Tip Leakage Vortex
Supervisor:
Michel Cervantes
Vegard Fredriksen
MASTER THESIS
Background
A Tip Leakage Vortex (TLV) sometimes appear
in hydraulic machines. Cavitation may develop
in the core of the TLV, often leading to severe
erosion of the runner blades and the casing.
The objective of this master thesis is to
investigate the TLV in a generic test case
numerically.
Trajectory of the TLV
Formation of TLV over the blade tip